Sorry to keep beating a dead horse, but it really would be nice to
get Xnest fixed. Xephyr works mostly, but on a dual monitor system
the -screen option is a poor substitute for the -geometry option in
Xnest and most other X programs. With -screen you can't set an
offset, only the size. It also seems to have have a non-standard
default for the window location (not the upper, left most corner of
the screen) and no man page.
Anyway, I used xev on a RedHat box I accessed through Xnest from
X11-2.3.1_rc6. When you type a space, the first time you get only a
KeyPress event. The 2nd time you press space (even if it is
separated by other typed characters, you get a KeyRelease event.
Other keys, such as "q", give both KeyPress and KeyRelease events
when you press and release the key.
Below is some xev output. The output for 'q" had 2 keystrokes, the
output for "space" had 4 keystrokes:
KeyPress event, serial 26, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140205341, (259,176), root:(314,681),
state 0x0, keycode 57 (keysym 0x20, space), same_screen YES,
XLookupString gives 1 bytes: (20) " "
XmbLookupString gives 1 bytes: (20) " "
XFilterEvent returns: False
KeyRelease event, serial 26, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140210389, (259,176), root:(314,681),
state 0x0, keycode 57 (keysym 0x20, space), same_screen YES,
XLookupString gives 1 bytes: (20) " "
KeyPress event, serial 26, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140231768, (259,176), root:(314,681),
state 0x0, keycode 57 (keysym 0x20, space), same_screen YES,
XLookupString gives 1 bytes: (20) " "
XmbLookupString gives 1 bytes: (20) " "
XFilterEvent returns: False
KeyRelease event, serial 26, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140243374, (259,176), root:(314,681),
state 0x0, keycode 57 (keysym 0x20, space), same_screen YES,
XLookupString gives 1 bytes: (20) " "
. . .
KeyPress event, serial 24, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140600016, (85,114), root:(247,616),
state 0x0, keycode 20 (keysym 0x71, q), same_screen YES,
XLookupString gives 1 bytes: (71) "q"
XmbLookupString gives 1 bytes: (71) "q"
XFilterEvent returns: False
KeyRelease event, serial 26, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140600085, (85,114), root:(247,616),
state 0x0, keycode 20 (keysym 0x71, q), same_screen YES,
XLookupString gives 1 bytes: (71) "q"
KeyPress event, serial 26, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140605793, (85,114), root:(247,616),
state 0x0, keycode 20 (keysym 0x71, q), same_screen YES,
XLookupString gives 1 bytes: (71) "q"
XmbLookupString gives 1 bytes: (71) "q"
XFilterEvent returns: False
KeyRelease event, serial 26, synthetic NO, window 0x2600001,
root 0x29, subw 0x0, time 1140605892, (85,114), root:(247,616),
state 0x0, keycode 20 (keysym 0x71, q), same_screen YES,
XLookupString gives 1 bytes: (71) "q"
Tom
Tom Jernigan, Oak Ridge National Lab, email@hidden
Presently at General Atomics, San Diego, (858) 455-4122
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